<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
        <script src="../vue.js"></script>
    </head>

    <body>
        <div id="app">
            <button @click="fullname='SHA MILA'">修改全名为SHA MILA</button>
            <h1>全名：{{fullname}}</h1>
        </div>
        <script>
            Vue.config.productionTip = false;

            const vm = new Vue({
                el: "#app",
                data() {
                    return {
                        firstName: "Ka",
                        lastName: "Sha",
                    };
                },
                computed: {
                    fullname: {
                        get() {
                            console.log('getter')
                            return this.firstName + ' ' + this.lastName
                        },
                        set(val) {
                            console.log('setter')
                            this.firstName = val.split(" ")[0]
                            this.lastName = val.split(" ")[1]
                        },
                    },
                },
            });
        </script>
    </body>
</html>
